loading content..

Dissipating Heat

Commercial grinders get hot.  Not crazy hot, but hot enough to change the coffee.  So, what are some of the things we can do to stabilize temperatures . . .

The first thing we have done is select a material ideally suited to transferring heat: billet aluminum.  The carrier assembly for the burr assembly is machined from aluminum with direct contact surfaces across the top and the entire outer wall of the burr. But since this carrier is held in place by two specialized steel bearings, we had to find an efficient way to move the heat away from the carrier.  Because we drive the assembly with a toothed belt, we simply used a double side belt so that the unused side would push air through the assembly and work as a secondary fan.

The center burr is mated directly to the large aluminum adjustment ring so that heat is radiated directly to ambient air.

The entire upper mechanism is also crafted from billet aluminum, into which we have machined cooling fins to increase surface area.  It works for a Ducati, so it should work here.

We also have built temperature sensing into the electronics of the grinder, which can send you a text message if temperatures exceed your ideal range in addition to displaying it on the built-in touch screen display.

One last thing . . . we have dimensioned the cooling fins to accept a copper line for a higher capacity version of the grinder with water cooling.  Polished copper line imbedded into billet aluminum cooling fins.  Coupling it to the brewed coffee network cools the mills as you brew without wasting water.




Leave a comment